Perhaps you should try some spelling variations:
hoc chuyen » khong chuyen
khoa than » khoa luan, hoa thai, hoa tan
than dung » thanh dung, chan dung, tran dung
sach tin » sach tien, sach kinh, sach tren
kien thu » kien thuc, kieu thu, kiem thu
anh khoa » doanh khoa, hang khoa
dung may » dung va, dung tai, mang may
tu sach » thu sach, su sach, te sach
tin hoc » sinh hoc
thu anh » thuy anh, thu canh, thu oanh

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach tin hoc chuyen đe ky thuat: kien thu anh khoa than dung may (trinh or dinh)~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach tin hoc chuyen đe ky thuat: kien thu anh khoa than dung may (trinh OR dinh).
• Adding a wildcard symbol may retrieve word variants: tu sach tin hoc chuyen đe ky thuat: kien thu anh khoa than dung may (trinh or dinh)*.